Air-pump



(No Model.)

i E 5 i A. S. NOONAN. AIR PUMP.

Patented Nov. 30,1897.

in van Z07:

UNITED STATES PATENT FFIcE.

ALBERT s. NOONAN, OF ROME, NEW YORK.

AIR-PUMP.

SPECIFICATION forming part of Letters Patent No. 594,703, dated November 30, 1897.

Application filed February 15, 1897. Serial No. 623,442. (No model.)

To all whom it may concern:

Be it known that I, ALBERT STEVEN Noo- NAN, of Rome, in the county of Oneida and State of New York, have invented new and useful Improvements in Pumps, of which the following is a full, clear, and exact description.

This invention relates to pumps for inflating pneumatic tires; and the object is to provide a pump of suitable construction and which may be operated by one hand of a person.

I will describe a pump embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, formingapart of this specification, in whichsimilar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal section of the pump embodying my invention. Fig. 2 is an elevation of a portion of a pump, showing its outlet 1), with which one end of the flexible tube R is designed to be engaged, the other end of said tube It being provided with means for attaching it to the nipple S of the valve leading through the rim U into the pneumatic tire. The flexible tube R will allow the pump to be engaged with the valve-nipple While the body portion of the pump is at a slight incline relatively to the wheel, and I provide means whereby the pumpwill be held rigidly in place, so that the piston therein may beoperated by one hand of an operator, making it necessary to hold the pump with the other hand. As here shown, this means consists of a boxing J, surrounding and moved longitudinally on the cylinder M. From this boxing J rods 0 extend outward parallel with the cylinder M, and secured to the outer ends of these rods 0 is a ring B, having an annular channel in which is seated a cushion or ring A, of flexible material. This cushion is designed to engage against the wheel-rim, and owing to its flexible nature said rim will not be marred.

I provide a clutch mechanism for securing the holding device in its adjusted position. As here shown, this clutch comprises the segmental plate H, having serrations or teeth in its inner side adapted to engage the annular serrations or teeth 1% on the cylinder M. This clutch-plate II is held yieldingly against the cylinder by means of a plate-spring G and engaged with said plate and engaged at its ends with the inner surface of its boxing J.

It will be seen that the shoulder portions of the serrations m are toward the outlet end of the cylinder, and therefore the holding device will be. secured in its adjusted position against the rim of the wheel; but when it is desired to move the holder out of such engagement the clutch-plate 1-1 will be drawn out of engagement with the serrations on the cylinder by means of a finger-piece F, extended from said plate outward through anopening in the boxing J. The holding device may be limited in its outward movement by means of a pin E, projected from the cylinderM near its outlet end In operation the flexible tube or pipe R will be connected to the outlet D, and also with the nipple S of the valve. Then the stop will be moved until its cushion A engages with the rim of the wheel, and then the pump-piston may be operated. The stem N of the piston will be of sufficient length to allow the piston to be forced nearly to the outlet end of 'the cylinder, so that practically all the air in the cylinder will be forced out upon a downward movement of the piston.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. A pump for inflating a pneumatic tire, comprising a cylinder, a piston operating therein, means for connecting the outlet of the cylinder with the valve of a wheel, and a holder adjustable longitudinally of the cylinder to engage the rim of the wheel, substantially as specified.

2. A pump for pneumatic tires, comprising a cylinder, apiston operating in said cylinder, means for connecting the outlet of the cylinder with the valve of a wheel, a holder ad- IOO justable longitudinally of the cylinder and adapted to engage with the rim of a wheel, and a clutch for securing said holder as desired, substantially as specified.

3. A pump for a pneumatic tire, comprising a cylinder, a piston operating therein, means for connecting the outlet of the cylinder with the Valve of a Wheel, aholder movable longitudinally of the cylinder and comprising a boxing surrounding such cylinder, rods extended from the boxing, a ring secured to the outer end of said rods, and a spring-pressed plate within the boxing having serrations adapted to engage with serrations on the cylinder, substantially as specified.

4. A pump for pneumatic tires, comprising a cylinder having annular serrations on its outer surface, a piston operating in the cylinder, a flexible tube for connecting the outlet of the cylinder with a Valve-nipple, a boxing 2o arms extended outward from said boxing, a 25 ring secured to the outer ends of said rods anda cushion on said ring adapted to engage with the rim of the wheel, substantially as specified.

ALBERT S. NOONAN.

WVitnesses:

J NO. M. BITTER, C. R. FERGUSON. 

